Fuel Charging and Controls

Fuel Charging and Controls

The fuel charging and control system consists of the:

- Throttle Body (TB)
- Fuel supply tube
- Fuel rails
- Fuel injectors
- Fuel pressure and temperature sensor

The fuel charging and controls system is:

- a Sequential Multi-Port Fuel Injection (SFI).
- pulse-width modulated.
- Mass Air Flow (MAF) controlled.


Throttle Body (TB)

The TB:

- controls air supply to the intake manifold by electronically positioning the throttle plate.
- is not adjustable.


Fuel Supply Tube

The fuel supply tube:

- supplies fuel to the 2 fuel rails.


Fuel Rails

The fuel rails:

- deliver fuel to the individual fuel injectors.


Fuel Injectors

The fuel injectors:

- are electrically operated by the PCM.
- atomize the fuel as the fuel is delivered.
- are deposit-resistant and self-cleaning.
- each have an internal solenoid which opens a needle valve to inject fuel into the cylinder heads.


Fuel Pressure and Temperature Sensor

The fuel pressure and temperature sensor:

- supplies the PCM with signals indicating fuel pressure and fuel temperature.